Carrier for pneumatic-despatch apparatus.



No. 842,352. v PATENTED JAN. 29, 1907.

n G. P. STODDARD.

CARRIER FOR PNEUMATIC DBSPATGH APPARATUS.

APPLICATION FILED MAY 17. 1904.

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No. 842,352. PATBNTED JAN. 29, 1907. c. P. sToDDARD.

CARRIER PoR PNBUMATIG DESPATGH APPARATUS.

APPLIOATIO FILED MAY 17. 1904.

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- the despatch-tube.

UNITED STATES PATENT oEEroE.

CHARLES E. SToDDARD, oF BoSToN,

MASSACHUSETTS, ASSIGNoR To AMER- ICAN PNEUMATIC SERVICE COMPANY, OF DOVER, DELAWARE, A COR- PORATION OF DELAWARE.l`

CARRIER FOR PNEUNIATlC-DES'PTCH APPARATUS.-

Specification of Letters Patent..y

. Application filed rMay 17, 1904. Serial NoA 208,369.

v Patented. Jan. 29, 1907.

To all wwm if; may concern:

Be it known that I, CHARLES F. STODDARD, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Carriers yfor Pneumatic-Despatch Apparatus, of which the following is a specification.

My invention relates to new and useful improvements in carriers for pneumaticdespatch-tube apparatus, and especially vto means for preventing the operation of the locking mechanism except when the cover is in proper locking osition on the shell.

Myinvention a so relates to means whereby the carrier cannot be inserted into the despatch-tube until the cover is lockedto the shell of the carrier.

-My invention further relates to means for preventing the movement of the locking mechanism after the` cover is locked to the shell of the carrier and the carrier placed in My invention consists of certain novel features hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, which illustrate a construction embodying my invention, Figure l is a'perspective view of the end of the carrier, showing the cover unlockedand ajar. Fig. 2 is a jview of the under side of the cover in its unlocked position. Fig. 3 is aplan viewfof the cover closed but unlocked; Fig. .4 lis a plan `View of the cover closed and locked. Fig.r 5 is a detail section through thesafety mechanism on the line x, Fig. l. Fig.` 6 is a Similar detail view with the handle in the position shown in Fig. 4. Fig. 7 is a detail view of the safety mechanismwith the handle in the position shown in Fig. 3. Fig. 8 is a detail view showing the handle' partly swung over after the cover has been locked. i

Like letters of reference refer to like parts throughout the'several views.

A represents the shell of the carrier, to which is hinged at A the cover A2. At the center A3 of this cover A2. is pivoted the plate A4, so that it may swing around the center A3 a short distance. To the shell A is securely fastened one or more lugs B B, which project into the interior of the shell A. Thev plate A4 is provided with one or more recesses B2 B3, which when the carrier 1s un- .tion-'shownin Figs. 3 and locked are directly above the similar recesses B4B5 in the cover A2. When .the vcover is closed, these recesses B2 B3 B4 B5 allow the cover A2 and the plate A4 to swing down past the lugs B B- until the cover strikes the stop will swing under the lug B and lug B', thereby locking the cover closed. y y

The handle H swings 'on the in P, which is secured to the plate A4by the locks B7 B3. The torsion-spring S has a tendency to hold the handle H in the position shown in Fig. 4,

and when the handle H is in the position` y shown in Fi s. l and 3 the.` torsion-spring S keeps the s oulder H pressed up into the recessR of the block R2. whichis securely fastened to the cover A2 and projects up through the; opening R3in the plate A4. The handle H is-'oonstructed on vthe handle Hl with a web H2, 'which when said-.handle H is in the position shown in Figs. 4 and 6 reaches down into the slots S2 and S3 of the plate A4 andthe cover A2,l on account 'of one vside H3 of the web H2 being flat said. web H2 does not reach into the slot S3 of thecover A2 when Athe handle H is in the position shown in Figs. 3 and 5. This allows the plate A4 to be turned on the center A3 only when the handle H is in the posicludes any possibility of the plate A4 becoming disengaged from the-.lugs B B until the handle H is swung into the position shown `in Fig. 5, andthe handle H cannot be swung respectively, but

5, and this preinto the position shown in F ig. 5 while the carrier is in the despatch-tube, because it carrier, and would therefore strike the inside of the tube. When the .coverv isopened after the handle H isswung under the overhanging portion R4 of the block R2, the spring S holds the handle H shown in Fig. 7., which brings the shoulder H into the recess R, thereby4 making it impossible under ordinary' conditions for the handle H to be swung out froml under the overhanging portionR4 of the block R2. until in the position ICO' 9S protrudes beyond the'peripheral limits of the theroy unlocking the cover. The cover A2 the cover A2 is closed. This under ordinary conditions keeps the handle H in the position shown in Fig. l all the time the cover is open, and as the handle H is set at an 1ncline to the plane in which the cover A2 swings, as shown in Fig. 3, (where L shows the projection of the line of travel of the point L on the handle H when the cover is raised) the carrier cannot ordinarily be inserted into the transmission-tubeA with the cover unlocked. The dotted line L2 represents the bore of the transmission-tube, Fig. 3, and as the line L tangent to the line L2 and the end of the handle H beyond `the point L is outside of the line L2, no matter in what position the cover A2 may be, part of the handle H will always protrude beyond the peripheral limits of the carrier, which makes it impossible to insert the carrier into the transmission-tube while the handle H is in the position shown in Fig. 3, which is the necessary position of the handle H in opening the cover A2.

The operation of the cover is as follows: Starting with the carrier closed and locked, as in Fig. 4, the handle H is swung over until the lower side, Fi 5, comes into contact with the upper si e of the plate At. The handle H is then pushed under the overhanging portion B4 of the block R2 into the position shown in Fig. 7, which brings the relative positions of the plate A2 and the cover A2 like that shown in Fig. 3, and the swinging of the handle H under the overhanging portion R2 of the block R2 turns the plate A4, so that the recesses B2 B3 are brought in line with the recesses B5 B4,

is then raised by means of the handle H, which is held in this position under the overhanging portion R4 of the block R2, as above explained, until the cover is closed, which is accomplished by the handle H. As the cover A2 reaches the stop B, Fig. 6, the pressure oi the handle H disengages the shoulder Hl from the recess R and allows the handle to be swung out Jfrom under the overhanging-portion Itl of the block R2, as shown in Fig. 8. The spring S then throws lthe handle H into the position shown in Fig. 4, thereby lookin the plate A4 and the cover A2 together, as s own in Fig. 6, which comletes the cycle of operation. The rivets V are securely fastened to the plate A4 and swing in the slots V2 V3 in the cover A2 and are the means of holding the plate A4 in juxtaposition to the cover A2 near the points where the cover A2 is held locked to the shell A. The shell A is cut at A9 to allow room for the handle when the cover A2 is closed.

I do not limit myself to the arrangement and construction shown, as the same may be varied without departing from the spirit of my invention.

Having thusl described the nature of my invention and set forth a construction embodying the same,.what I claim as new, and desire to secure by Letters Patent of the United States, isd

1. In a carrier for pneumatic-despatchtube apparatus, a cover, locking mechanism pivoted on said cover, a lever for operating said locking mechanism, means on the shell of the carrier with which said locking mechanism engages for locking the cover to the shell of the carrier, a spring for holdingsaid lever within the eriphery of the carrier when the cover is ocked to the shell of the carrier and means ior holding said lever against the action of said spring outside of the periphery of the shell when the cover is unlocked.

2. In a carrier Jfor pneumatic-despatchtube apparatus, a cover, locking mechanism pivoted on said cover, a lever for operating said locking mechanism, means on the shell of the carrier with which said locking mechanism engages for locking the ycover to the shell' of the carrier, a spring acting on said lever for holding said lever within the periphery of -the carrier when the cover is locked to the shell of the carrierl and means for holding said lever against the action of said spring outside of the periphery of the shell when the cover is unlocked.

3. In a carrier for pneumatic-despatchtube apparatus, a cover, locking mechanism pivoted on said cover, a lever for operatin said locking mechanism, means on the shel of the carrier with which said locking mechanism engages for locking the cover to the shell of the carrier, a spring acting on said lever for holding said lever within the periphery of the carrier when the cover is locked to the shell of the carrier, and means engaging with said lever for holding the same against the action of said spring beyond the periphery of the carrier when the cover is unlocked from the shell of the carrier.

4. In a carrier for pneumatic-despatchtube apparatus, a cover, a plate pivoted on said cover, a lever pivoted to said plate for operating the vsame, lugs on the shell of the carrier with which said plate engages for locking the cover to the shell of the carrier, a spring for holding said lever within the periphery of the carrier when the cover is locked to the shell of the carrier and means for holding said lever against the action of said spring outside of the periphery of the shell when the cover is unlocked.

5. In a carrier for pneumatic-despatchtube apparatus, a cover, a plate pivoted on said cover, a lever pivoted to said plate for operating the same, lugs on the shell oi' the carrier with which said plate engages Jfor locking the cover to the shell of the carrier, a spring acting on said lever Jfor Vholding said lever within the eriphery of the carrier when the cover is ibcked to the shell of the carrier and means for holding said lever against the action of said spring outside of the periphery of the shell when the cover is unlocked. v

6. In a carrier for pneumatic-despatchtube apparatus, a cover, a plate pivoted on said cover, a lever pivoted to saidplate for operating the same, lugs 0n the shell of the carrier With which said plate engages for locking the cover to the shell of the carrier, a spring acting on said lever for holding said lever Within the periphery of the carrier When the cover is locked to the shell of the carrier,

and means engaging With said lever for holding the same against theaction of said spring beyond the periphery of the carrier When the cover is unlocked from the shell of the carner.

In testimony whereof I have signed my name to this specication, in the presenc'eof two subscribing Witnesses, this 14th day of May, A. D. 1904.

CHARLES F. STODDARD.

Witnesses:

A. L.fMEssER, y

A. R. LARRABEE. 

